Complete!Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfile * base: mirror.jaleco.com * epel: mirror.steadfastnet.com * extras: mirror.cs.uwp.edu * updates: centos.mirrors.tds.netResolving Dependencies--> Running transaction check---> Package NetworkManager.x86_64 1:1.10.2-13.el7 will be updated---> Package NetworkManager.x86_64 1:1.10.2-16.el7_5 will be an update---> Package NetworkManager-libnm.x86_64 1:1.10.2-13.el7 will be updated---> Package NetworkManager-libnm.x86_64 1:1.10.2-16.el7_5 will be an update---> Package NetworkManager-team.x86_64 1:1.10.2-13.el7 will be updated---> Package NetworkManager-team.x86_64 1:1.10.2-16.el7_5 will be an update---> Package NetworkManager-tui.x86_64 1:1.10.2-13.el7 will be updated---> Package NetworkManager-tui.x86_64 1:1.10.2-16.el7_5 will be an update---> Package audit.x86_64 0:2.8.1-3.el7 will be updated---> Package audit.x86_64 0:2.8.1-3.el7_5.1 will be an update---> Package audit-libs.x86_64 0:2.8.1-3.el7 will be updated---> Package audit-libs.x86_64 0:2.8.1-3.el7_5.1 will be an update---> Package bind-libs-lite.x86_64 32:9.9.4-61.el7 will be updated---> Package bind-libs-lite.x86_64 32:9.9.4-61.el7_5.1 will be an update---> Package bind-license.noarch 32:9.9.4-61.el7 will be updated---> Package bind-license.noarch 32:9.9.4-61.el7_5.1 will be an update---> Package binutils.x86_64 0:2.27-27.base.el7 will be updated---> Package binutils.x86_64 0:2.27-28.base.el7_5.1 will be an update---> Package ca-certificates.noarch 0:2017.2.20-71.el7 will be updated---> Package ca-certificates.noarch 0:2018.2.22-70.0.el7_5 will be an update---> Package centos-release.x86_64 0:7-5.1804.el7.centos will be updated---> Package centos-release.x86_64 0:7-5.1804.5.el7.centos will be an update---> Package dhclient.x86_64 12:4.2.5-68.el7.centos will be updated---> Package dhclient.x86_64 12:4.2.5-68.el7.centos.1 will be an update---> Package dhcp-common.x86_64 12:4.2.5-68.el7.centos will be updated---> Package dhcp-common.x86_64 12:4.2.5-68.el7.centos.1 will be an update---> Package dhcp-libs.x86_64 12:4.2.5-68.el7.centos will be updated---> Package dhcp-libs.x86_64 12:4.2.5-68.el7.centos.1 will be an update---> Package dracut.x86_64 0:033-535.el7 will be updated---> Package dracut.x86_64 0:033-535.el7_5.1 will be an update---> Package dracut-config-rescue.x86_64 0:033-535.el7 will be updated---> Package dracut-config-rescue.x86_64 0:033-535.el7_5.1 will be an update---> Package dracut-network.x86_64 0:033-535.el7 will be updated---> Package dracut-network.x86_64 0:033-535.el7_5.1 will be an update---> Package e2fsprogs.x86_64 0:1.42.9-11.el7 will be updated---> Package e2fsprogs.x86_64 0:1.42.9-12.el7_5 will be an update---> Package e2fsprogs-libs.x86_64 0:1.42.9-11.el7 will be updated---> Package e2fsprogs-libs.x86_64 0:1.42.9-12.el7_5 will be an update---> Package firewalld.noarch 0:0.4.4.4-14.el7 will be updated---> Package firewalld.noarch 0:0.4.4.4-15.el7_5 will be an update---> Package firewalld-filesystem.noarch 0:0.4.4.4-14.el7 will be updated---> Package firewalld-filesystem.noarch 0:0.4.4.4-15.el7_5 will be an update---> Package gnupg2.x86_64 0:2.0.22-4.el7 will be updated---> Package gnupg2.x86_64 0:2.0.22-5.el7_5 will be an update---> Package initscripts.x86_64 0:9.49.41-1.el7 will be updated---> Package initscripts.x86_64 0:9.49.41-1.el7_5.2 will be an update---> Package iptables.x86_64 0:1.4.21-24.el7 will be updated---> Package iptables.x86_64 0:1.4.21-24.1.el7_5 will be an update---> Package iwl100-firmware.noarch 0:39.31.5.1-62.el7 will be updated---> Package iwl100-firmware.noarch 0:39.31.5.1-62.2.el7_5 will be an update---> Package iwl1000-firmware.noarch 1:39.31.5.1-62.el7 will be updated---> Package iwl1000-firmware.noarch 1:39.31.5.1-62.2.el7_5 will be an update---> Package iwl105-firmware.noarch 0:18.168.6.1-62.el7 will be updated---> Package iwl105-firmware.noarch 0:18.168.6.1-62.2.el7_5 will be an update---> Package iwl135-firmware.noarch 0:18.168.6.1-62.el7 will be updated---> Package iwl135-firmware.noarch 0:18.168.6.1-62.2.el7_5 will be an update---> Package iwl2000-firmware.noarch 0:18.168.6.1-62.el7 will be updated---> Package iwl2000-firmware.noarch 0:18.168.6.1-62.2.el7_5 will be an update---> Package iwl2030-firmware.noarch 0:18.168.6.1-62.el7 will be updated---> Package iwl2030-firmware.noarch 0:18.168.6.1-62.2.el7_5 will be an update---> Package iwl3160-firmware.noarch 0:22.0.7.0-62.el7 will be updated---> Package iwl3160-firmware.noarch 0:22.0.7.0-62.2.el7_5 will be an update---> Package iwl3945-firmware.noarch 0:15.32.2.9-62.el7 will be updated---> Package iwl3945-firmware.noarch 0:15.32.2.9-62.2.el7_5 will be an update---> Package iwl4965-firmware.noarch 0:228.61.2.24-62.el7 will be updated---> Package iwl4965-firmware.noarch 0:228.61.2.24-62.2.el7_5 will be an update---> Package iwl5000-firmware.noarch 0:8.83.5.1_1-62.el7 will be updated---> Package iwl5000-firmware.noarch 0:8.83.5.1_1-62.2.el7_5 will be an update---> Package iwl5150-firmware.noarch 0:8.24.2.2-62.el7 will be updated---> Package iwl5150-firmware.noarch 0:8.24.2.2-62.2.el7_5 will be an update---> Package iwl6000-firmware.noarch 0:9.221.4.1-62.el7 will be updated---> Package iwl6000-firmware.noarch 0:9.221.4.1-62.2.el7_5 will be an update---> Package iwl6000g2a-firmware.noarch 0:17.168.5.3-62.el7 will be updated---> Package iwl6000g2a-firmware.noarch 0:17.168.5.3-62.2.el7_5 will be an update---> Package iwl6000g2b-firmware.noarch 0:17.168.5.2-62.el7 will be updated---> Package iwl6000g2b-firmware.noarch 0:17.168.5.2-62.2.el7_5 will be an update---> Package iwl6050-firmware.noarch 0:41.28.5.1-62.el7 will be updated---> Package iwl6050-firmware.noarch 0:41.28.5.1-62.2.el7_5 will be an update---> Package iwl7260-firmware.noarch 0:22.0.7.0-62.el7 will be updated---> Package iwl7260-firmware.noarch 0:22.0.7.0-62.2.el7_5 will be an update---> Package iwl7265-firmware.noarch 0:22.0.7.0-62.el7 will be updated---> Package iwl7265-firmware.noarch 0:22.0.7.0-62.2.el7_5 will be an update---> Package kernel.x86_64 0:3.10.0-862.14.4.el7 will be installed---> Package kernel-tools.x86_64 0:3.10.0-862.el7 will be updated---> Package kernel-tools.x86_64 0:3.10.0-862.14.4.el7 will be an update---> Package kernel-tools-libs.x86_64 0:3.10.0-862.el7 will be updated---> Package kernel-tools-libs.x86_64 0:3.10.0-862.14.4.el7 will be an update---> Package kexec-tools.x86_64 0:2.0.15-13.el7 will be updated---> Package kexec-tools.x86_64 0:2.0.15-13.el7_5.2 will be an update---> Package kpartx.x86_64 0:0.4.9-119.el7 will be updated---> Package kpartx.x86_64 0:0.4.9-119.el7_5.1 will be an update---> Package krb5-libs.x86_64 0:1.15.1-18.el7 will be updated---> Package krb5-libs.x86_64 0:1.15.1-19.el7 will be an update---> Package libblkid.x86_64 0:2.23.2-52.el7 will be updated---> Package libblkid.x86_64 0:2.23.2-52.el7_5.1 will be an update---> Package libcom_err.x86_64 0:1.42.9-11.el7 will be updated---> Package libcom_err.x86_64 0:1.42.9-12.el7_5 will be an update---> Package libgcc.x86_64 0:4.8.5-28.el7 will be updated---> Package libgcc.x86_64 0:4.8.5-28.el7_5.1 will be an update---> Package libgomp.x86_64 0:4.8.5-28.el7 will be updated---> Package libgomp.x86_64 0:4.8.5-28.el7_5.1 will be an update---> Package libmount.x86_64 0:2.23.2-52.el7 will be updated---> Package libmount.x86_64 0:2.23.2-52.el7_5.1 will be an update---> Package libmspack.x86_64 0:0.5-0.5.alpha.el7 will be updated---> Package libmspack.x86_64 0:0.7-0.1.alpha.el7 will be an update---> Package libss.x86_64 0:1.42.9-11.el7 will be updated---> Package libss.x86_64 0:1.42.9-12.el7_5 will be an update---> Package libstdc++.x86_64 0:4.8.5-28.el7 will be updated---> Package libstdc++.x86_64 0:4.8.5-28.el7_5.1 will be an update---> Package libuuid.x86_64 0:2.23.2-52.el7 will be updated---> Package libuuid.x86_64 0:2.23.2-52.el7_5.1 will be an update---> Package linux-firmware.noarch 0:20180220-62.git6d51311.el7 will be updated---> Package linux-firmware.noarch 0:20180220-62.2.git6d51311.el7_5 will be an update---> Package mariadb-libs.x86_64 1:5.5.56-2.el7 will be updated---> Package mariadb-libs.x86_64 1:5.5.60-1.el7_5 will be an update---> Package microcode_ctl.x86_64 2:2.1-29.el7 will be updated---> Package microcode_ctl.x86_64 2:2.1-29.16.el7_5 will be an update---> Package nspr.x86_64 0:4.17.0-1.el7 will be updated---> Package nspr.x86_64 0:4.19.0-1.el7_5 will be an update---> Package nss.x86_64 0:3.34.0-4.el7 will be updated---> Package nss.x86_64 0:3.36.0-7.el7_5 will be an update---> Package nss-softokn.x86_64 0:3.34.0-2.el7 will be updated---> Package nss-softokn.x86_64 0:3.36.0-5.el7_5 will be an update---> Package nss-softokn-freebl.x86_64 0:3.34.0-2.el7 will be updated---> Package nss-softokn-freebl.x86_64 0:3.36.0-5.el7_5 will be an update---> Package nss-sysinit.x86_64 0:3.34.0-4.el7 will be updated---> Package nss-sysinit.x86_64 0:3.36.0-7.el7_5 will be an update---> Package nss-tools.x86_64 0:3.34.0-4.el7 will be updated---> Package nss-tools.x86_64 0:3.36.0-7.el7_5 will be an update---> Package nss-util.x86_64 0:3.34.0-2.el7 will be updated---> Package nss-util.x86_64 0:3.36.0-1.el7_5 will be an update---> Package open-vm-tools.x86_64 0:10.1.10-3.el7 will be updated---> Package open-vm-tools.x86_64 0:10.1.10-3.el7_5.1 will be an update---> Package openldap.x86_64 0:2.4.44-13.el7 will be updated---> Package openldap.x86_64 0:2.4.44-15.el7_5 will be an update---> Package procps-ng.x86_64 0:3.3.10-17.el7 will be updated---> Package procps-ng.x86_64 0:3.3.10-17.el7_5.2 will be an update---> Package python.x86_64 0:2.7.5-68.el7 will be updated---> Package python.x86_64 0:2.7.5-69.el7_5 will be an update---> Package python-firewall.noarch 0:0.4.4.4-14.el7 will be updated---> Package python-firewall.noarch 0:0.4.4.4-15.el7_5 will be an update---> Package python-libs.x86_64 0:2.7.5-68.el7 will be updated---> Package python-libs.x86_64 0:2.7.5-69.el7_5 will be an update---> Package python-perf.x86_64 0:3.10.0-862.el7 will be updated---> Package python-perf.x86_64 0:3.10.0-862.14.4.el7 will be an update---> Package rsyslog.x86_64 0:8.24.0-16.el7 will be updated---> Package rsyslog.x86_64 0:8.24.0-16.el7_5.4 will be an update---> Package selinux-policy.noarch 0:3.13.1-192.el7 will be updated---> Package selinux-policy.noarch 0:3.13.1-192.el7_5.6 will be an update---> Package selinux-policy-targeted.noarch 0:3.13.1-192.el7 will be updated---> Package selinux-policy-targeted.noarch 0:3.13.1-192.el7_5.6 will be an update---> Package sudo.x86_64 0:1.8.19p2-13.el7 will be updated---> Package sudo.x86_64 0:1.8.19p2-14.el7_5 will be an update---> Package systemd.x86_64 0:219-57.el7 will be updated---> Package systemd.x86_64 0:219-57.el7_5.3 will be an update---> Package systemd-libs.x86_64 0:219-57.el7 will be updated---> Package systemd-libs.x86_64 0:219-57.el7_5.3 will be an update---> Package systemd-sysv.x86_64 0:219-57.el7 will be updated---> Package systemd-sysv.x86_64 0:219-57.el7_5.3 will be an update---> Package tuned.noarch 0:2.9.0-1.el7 will be updated---> Package tuned.noarch 0:2.9.0-1.el7_5.2 will be an update---> Package tzdata.noarch 0:2018c-1.el7 will be updated---> Package tzdata.noarch 0:2018f-2.el7 will be an update---> Package util-linux.x86_64 0:2.23.2-52.el7 will be updated---> Package util-linux.x86_64 0:2.23.2-52.el7_5.1 will be an update---> Package yum-plugin-fastestmirror.noarch 0:1.1.31-45.el7 will be updated---> Package yum-plugin-fastestmirror.noarch 0:1.1.31-46.el7_5 will be an update--> Finished Dependency Resolution

Thank you for the quick response. I found in the logs that the script attempts to poll http://whatismyip.akamai.com/ for the external IP address and that the DNS requests were not resolving correctly so the script never got the external ip output.

I was able to get this resolved and successfully installed after fixing that.